01 Record

CVE-2026-52939

net/rds: fix NULL deref in rds_ib_send_cqe_handler() on masked atomic completion

UnratedPUBLISHEDCNA: Linux

CNA base scoreUnratedNo CNA CVSS vector

View raw JSON

02 Description

net/rds: fix NULL deref in rds_ib_send_cqe_handler() on masked atomic completion

03 Exploitation and scoring

Exploitation: Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision: Not assessed by CISA
EPSS probability: 0.16% probability of exploitation activity in the next 30 days.
EPSS percentile: Ranks above 5.6% of scored records. A rank, not a probability.
NVD base score: 5.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD analysis status: Analyzed. NVD last modified this record on 2026-07-08.
Red Hat severity: Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2026-06-24 07:14Z2 MO AGO

Last updated

2026-06-24 07:14Z2 MO AGO

Reserved

2026-06-09

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

CWE-476NULL Pointer DereferenceBase

Data version

5.2

Document digest

fb6f55df35e1d51efbdef03a8639f113102dad921cac08a90eda7dda26645466

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux20c72bd5f5f902e5a8745d51573699605bf8d21c to < a0148342badd8c9b2e46551766a27cb76c82e715, 20c72bd5f5f902e5a8745d51573699605bf8d21c to < 4dd262f875e87653df50b138de1390ab0628e6b7, 20c72bd5f5f902e5a8745d51573699605bf8d21c to < 6e4615164d185a26badb2f376a2449f4d174a5f0, 20c72bd5f5f902e5a8745d51573699605bf8d21c to < 0f22412a2f4fbbe0251c132abee045d15a90e5b6, 20c72bd5f5f902e5a8745d51573699605bf8d21c to < 0f7baa82a24813cdad0b06a6f8f07e4824af5ed5, 20c72bd5f5f902e5a8745d51573699605bf8d21c to < dcf458120add64c96a6ef5cf719340453f6e6abf, 20c72bd5f5f902e5a8745d51573699605bf8d21c to < 4fd34669558085bcb589aa2078a13b0ca79e360d, 20c72bd5f5f902e5a8745d51573699605bf8d21c to < 34080db3e70ddf94c38512ad2331e3c3afca6cc1, 2.6.37—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/a0148342badd8c9b2e46551766a27cb76c82e715
git.kernel.orghttps://git.kernel.org/stable/c/4dd262f875e87653df50b138de1390ab0628e6b7
git.kernel.orghttps://git.kernel.org/stable/c/6e4615164d185a26badb2f376a2449f4d174a5f0
git.kernel.orghttps://git.kernel.org/stable/c/0f22412a2f4fbbe0251c132abee045d15a90e5b6
git.kernel.orghttps://git.kernel.org/stable/c/0f7baa82a24813cdad0b06a6f8f07e4824af5ed5
git.kernel.orghttps://git.kernel.org/stable/c/dcf458120add64c96a6ef5cf719340453f6e6abf
git.kernel.orghttps://git.kernel.org/stable/c/4fd34669558085bcb589aa2078a13b0ca79e360d
git.kernel.orghttps://git.kernel.org/stable/c/34080db3e70ddf94c38512ad2331e3c3afca6cc1

01 Record index

CVE-2026-52939

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2026-52939

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References